libgo: update to go1.9

    
    Reviewed-on: https://go-review.googlesource.com/63753

From-SVN: r252767

1 files changed, 3 insertions, 24 deletions

diff --git a/libgo/go/net/sys_cloexec.go b/libgo/go/net/sys_cloexec.go
index f2ea8425493..def05cb5a7d 100644
--- a/libgo/go/net/sys_cloexec.go
+++ b/libgo/go/net/sys_cloexec.go
@@ -5,11 +5,12 @@
 // This file implements sysSocket and accept for platforms that do not
 // provide a fast path for setting SetNonblock and CloseOnExec.
 
-// +build aix darwin dragonfly nacl netbsd openbsd solaris
+// +build aix darwin nacl netbsd openbsd solaris
 
 package net
 
 import (
+	"internal/poll"
 	"os"
 	"syscall"
 )
@@ -28,30 +29,8 @@ func sysSocket(family, sotype, proto int) (int, error) {
 		return -1, os.NewSyscallError("socket", err)
 	}
 	if err = syscall.SetNonblock(s, true); err != nil {
-		closeFunc(s)
+		poll.CloseFunc(s)
 		return -1, os.NewSyscallError("setnonblock", err)
 	}
 	return s, nil
 }
-
-// Wrapper around the accept system call that marks the returned file
-// descriptor as nonblocking and close-on-exec.
-func accept(s int) (int, syscall.Sockaddr, error) {
-	// See ../syscall/exec_unix.go for description of ForkLock.
-	// It is probably okay to hold the lock across syscall.Accept
-	// because we have put fd.sysfd into non-blocking mode.
-	// However, a call to the File method will put it back into
-	// blocking mode. We can't take that risk, so no use of ForkLock here.
-	ns, sa, err := acceptFunc(s)
-	if err == nil {
-		syscall.CloseOnExec(ns)
-	}
-	if err != nil {
-		return -1, nil, os.NewSyscallError("accept", err)
-	}
-	if err = syscall.SetNonblock(ns, true); err != nil {
-		closeFunc(ns)
-		return -1, nil, os.NewSyscallError("setnonblock", err)
-	}
-	return ns, sa, nil
-}